OlyFlow roof drains can be modified or custom designed to meet irregular retrofit requirements, particularly for tight corners, box gutters, and areas close to the edges. Stem lengths can reach up to 18 inches or more and are also available in angled and 90-degree stems. Drains with leaders can be made anywhere from 1-12 inches in diameter. Each drain exceeds the ANSI/SPRI standard and can be fabricated in a few days or less.
OlyFlow Custom Roof Drains by OMG Roofing Products.